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Durability improving and corrosion-resistance mechanism of graphene oxide modified ultra-thin carbon paper used in PEM fuel cell
Corrosion Science ( IF 8.3 ) Pub Date : 2018-01-01 , DOI: 10.1016/j.corsci.2017.10.025
Piaopiao Yang , Xiaobo Wu , Zhiyong Xie , Pan Wang , Chunbo Liu , Qizhong Huang

Abstract The corrosion-resistance properties of modified ultra-thin carbon paper (CP) different graphene oxide (GO) content used in proton exchange membrane fuel cells (PEMFC) are studied for the first time. Results show that CP with 1 wt% GO has distinguished corrosion-resistance property (corrosion current: 5.539E − 8A.cm−2, minimum weight loss and contact angle variation). And mechanism analysis was found that the CP-1GO-P had uniform florine coating on some area of carbon fiber while T-CP-P has little. Moreover, the addition of GO could introduce more C O and C O groups which interact with the florine atom, thus can strengthen the bonding of PTFE and matrix carbon effectively.

中文翻译:

PEM燃料电池用氧化石墨烯改性超薄碳纸的耐久性提高及耐腐蚀机理

摘要 首次研究了不同氧化石墨烯(GO)含量的改性超薄碳纸(CP)在质子交换膜燃料电池(PEMFC)中的耐腐蚀性能。结果表明,含有 1 wt% GO 的 CP 具有卓越的耐腐蚀性能(腐蚀电流:5.539E - 8A.cm-2,最小重量损失和接触角变化)。并且机理分析发现CP-1GO-P在碳纤维的某些区域有均匀的氟涂层,而T-CP-P几乎没有。此外,GO的加入可以引入更多与氟原子相互作用的CO和CO基团,从而可以有效地加强PTFE与基体碳的结合。
更新日期:2018-01-01
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